The MC14556B is constructed with complementary MOS (CMOS) enhancement mode devices. Each Decoder/Demultiplexer has two select inputs (A and B), an active low Enable input (E), and four mutually exclusive outputs (Q0, Q1, Q2, Q3). The MC14556B has the selected output go to the “low” state. Expanded decoding such as binary-to-hexadecimal (1-of-16), etc., can be achieved by using MC14556B devices. Applications include code conversion, address decoding, memory selection control, and demultiplexing (using the Enable input as a data input) in digital data transmission systems.
Diode Protection on All Inputs
Active High or Active Low Outputs
Supply Voltage Range = 3.0 Vdc to 18 Vdc
All Outputs Buffered
Capable of Driving Two Low-Power TTL Loads or One Low-Power
Schottky TTL Load Over the Rated Temperature Range
Datasheet Available: Motorola MC14556B
16 pin DIP. Manufactured by Motorola.